__constant_ntohs   18 include/uapi/linux/byteorder/big_endian.h #define __constant_ntohs(x) ((__force __u16)(__be16)(x))
__constant_ntohs   18 include/uapi/linux/byteorder/little_endian.h #define __constant_ntohs(x) ___constant_swab16((__force __be16)(x))